Question

What is the difference between blackholes and black body??

Answer 1

is this a joke?

Answer 2

No, isn't. do you know blckbody radiation??? These are called blackbodies, that is, bodies that have surfaces which absorb all the thermal radiation incident upon them.

Answer 3

ok, in that case the main difference between them is their density. black holes are made out of the same stuff the star was made out of, just highly concentrated.

Answer 4

anything else??? anyone??

Answer 5

A blackbody allows all incident radiation to pass into it (no reflected energy) and internally absorbs all the incident radiation (no energy transmitted through the body). This is true of radiation for all wavelengths and for all angles of incidence. Hence the blackbody is a perfect absorber for all incident radiation.

Answer 6

yes of course the blackbody is a perfect absorber for all incident radiation, but the blackbody is also a perfect emitter of radiation.., is the black hole also a perfect emitter?

Answer 7

nothing is emitter from a black hole, apart from hawking radiation.

Answer 8

emitted*

Answer 9

nice..., thank u @ninjin

Answer 10

hei @ninjin can u explains to me about hawking radiation??